afforest;make(a place)green by planting trees,grass,etc ～城市plant trees in and around the city/～山區(qū)afforest mountain district /～祖國(guó)，造福后代make the whole country green (or cover the country with trees) for the benefit of future generations/～覆蓋率greenery coverage/～運(yùn)動(dòng)afforestation drive